14,000,000 SHARES OF COMMON STOCK OF CAPITAL ONE FINANCIAL CORPORATION UNDERWRITING AGREEMENT

Exhibit 1.1

14,000,000 SHARES OF COMMON STOCK

OF

CAPITAL ONE FINANCIAL CORPORATION

UNDERWRITING AGREEMENT

September 24, 2008

Citigroup Global Markets Inc.

388 Greenwich Street

New York, NY 10013

J.P. Morgan Securities Inc.

277 Park Avenue

New York, NY 10172

As Representatives of the several

Underwriters named in Schedule I hereto

Dear Sirs:

Capital One Financial Corporation, a Delaware corporation (the “Company”), proposes to issue and sell 14,000,000 shares (the “Firm Shares”) of its common stock, par value $0.01 per share (the “Common Stock”) to the several underwriters named in Schedule I hereto (the “Underwriters”), for which you are acting as the Representatives (the “Representatives”). In addition, solely for the purpose of covering over-allotments, the Company proposes to grant to the Underwriters the option to purchase from the Company up to an additional 2,100,000 shares of Common Stock (the “Option Shares”). The Firm Shares and the Option Shares are hereinafter collectively sometimes referred to as the “Shares.” The Shares are described in the Prospectus which is referred to below.

1. Registration Statement and Prospectus. The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) a registration statement on Form S-3 (File No. 333-133943) under the Securities Act of 1933, as amended (the “Securities Act”) in respect of its debt securities, shares of its preferred stock, $0.01 par value, depositary shares, shares of its Common Stock, its stock purchase contracts, equity units and trust preferred securities that may be issued by a related trust (as amended through the date of this Agreement, being herein referred to as the “Registration Statement”). Such Registration Statement has been declared effective by the Commission. The Registration Statement contains a base prospectus in the form in which it has most recently been filed with the Commission on or prior to the date of this

Agreement (the “Base Prospectus”), to be used in connection with the public offering and sale of the Shares. Any preliminary prospectus supplement to the Base Prospectus that describes the Shares and the offering thereof and is used prior to filing of the Prospectus is called, together with the Base Prospectus, a “preliminary prospectus.” The term “Prospectus” shall mean the final prospectus supplement relating to the Shares, together with the Base Prospectus, that is first filed pursuant to Rule 424(b) under the Securities Act after the date and time that this Agreement is executed and delivered by the parties hereto but shall not include any free writing prospectus (as such term is used in Rule 405 under the Securities Act). Any Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Securities Act; any reference to any amendment or supplement to any preliminary prospectus or the Prospectus shall be deemed to refer to and include any documents filed after the date of such preliminary prospectus or Prospectus, as the case may be, under the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder (collectively, the “Exchange Act”), and incorporated by reference in such preliminary prospectus or Prospectus, as the case may be. The Company also has prepared and filed (or will file) with the Commission the Issuer Free Writing Prospectuses (as defined below) set forth on Schedule II hereto. All references in this Agreement to the Registration Statement, a preliminary prospectus, the Prospectus, or any amendments or supplements to any of the foregoing, shall include any copy thereof filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval System (“EDGAR”).

2. Agreements to Sell and Purchase. On the basis of the representations and warranties contained in this Agreement, and subject to its terms and conditions, the Company agrees to issue and sell, and each Underwriter agrees, severally and not jointly, to purchase from the Company the number of Firm Shares set forth opposite the name of such Underwriter in Schedule I hereto, subject to adjustment in accordance with Section 10 hereof, in each case at a purchase price of $47.1625 per Share (the “Purchase Price”).

In addition, the Company agrees to issue and sell the Option Shares to the several underwriters as provided in this Agreement, and the Underwriters, on the basis of the representations and warranties contained in this Agreement, and subject to its terms and conditions, shall have the option to purchase, severally and not jointly, from the Company the Option Shares at the Purchase Price.

If any Option Shares are to be purchased, the number of Option Shares to be purchased by each Underwriter shall be the number of Option Shares which bears the same ratio to the aggregate number of Option Shares being purchased as the number of Firm Shares set forth opposite the name of such Underwriter in Schedule 1 hereto (or such number increased as set forth in Section 10 hereof) bears to the aggregate number of Firm Shares being purchased from the Company by the several Underwriters, subject, however, to such adjustments to eliminate any fractional Shares as the Representatives in its sole discretion shall make.

The Underwriters may exercise the option to purchase the Option Shares at any time in whole, or from time to time in part, on or before the thirtieth day following the

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date of this Agreement, by written notice from the Representatives to the Company. Such notice shall set forth the aggregate number of Option Shares as to which the option is being exercised and the date and time when the Option Shares are to be delivered and paid for which may be the same date and time as the Closing Date (as hereinafter defined) but shall not be earlier than the Closing Date nor later than the tenth full business day after the date of such notice (unless such time and date are postponed in accordance with the provisions of Section 10 hereof). Any such notice shall be given at least two business days prior to the date and time of delivery specified therein.

3. Terms of Public Offering. The Company is advised by you that the Underwriters propose (i) to make a public offering of their respective portions of the Shares as soon after the execution hereof as practicable and (ii) initially to offer the Shares upon the terms set forth in the Prospectus.

4. Delivery and Payment. The Company will deliver, or cause to be delivered, the Shares to the Representatives for the account of each Underwriter against payment by or on behalf of such Underwriter of the Purchase Price by wire transfer of Federal (same-day) funds to the account specified by the Company to the Representatives at least twenty-four hours in advance, by causing Computershare Investor Services, LLC, as registrar, to register the Shares in the name of Cede & Co., or such other nominee as DTC may designate, and shall cause DTC to credit the Shares to the account of J.P. Morgan Securities Inc. at DTC. The time and date of such delivery and payment, with respect to the Firm Shares, shall be 10:00 A.M., New York City time on the fourth business day, unless otherwise permitted by the Commission pursuant to Rule 15c6-1 of the Exchange Act (the “Closing Date”), following the date of the Prospectus or such other time and date as the Representative and the Company may agree upon in writing, and with respect to the Option Shares shall be 10:00 A.M., New York City time, on the date specified by the Representatives in the written notice given by the Representatives of the Underwriters’ election to purchase such Option Shares, or at such other time and date as the Representatives and the Company may agree upon in writing (the “Option Closing Date”).

5. Agreements of the Company. The Company agrees with you:

(a) To file the Prospectus with the Commission pursuant to Rule 424(b)(5) not later than the second business day following the execution and delivery of this Agreement.

(b) During the period beginning at the Time of Sale (as defined below) and ending on the later of the Closing Date or such date as in the opinion of counsel for the Underwriters, the Prospectus is no longer required by law to be delivered in connection with sales by an Underwriter or dealer, including in circumstances where such requirement may be satisfied pursuant to Rule 172 (the “Prospectus Delivery Period”), prior to amending or supplementing the Registration Statement, the Disclosure Package (as defined below) or the Prospectus (including any amendment or supplement through incorporation by reference of any report filed under the Exchange Act), the Company shall furnish to the Representatives for review a copy of each such proposed amendment or supplement.

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(c) If, during the Prospectus Delivery Period, any event or development shall occur or condition exist as a result of which the Disclosure Package or Prospectus as then amended and supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, or if it shall be necessary to amend or supplement the Disclosure Package or the Prospectus, or to file under the Exchange Act any document incorporated by reference in the Disclosure Package or the Prospectus, in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, or if in the opinion of the Representatives it is otherwise necessary to amend or supplement the Registration Statement, the Disclosure Package or the Prospectus, or to file under the Exchange Act any document incorporated by reference in the Disclosure Package or the Prospectus, or to file a new registration statement containing the Prospectus, in order to comply with law, including in connection with the delivery of the Prospectus, the Company agrees to (i) notify the Representatives of any such event or condition and (ii) promptly prepare (subject to paragraph (b) above), file with the Commission (and use its best efforts to have any amendment to the Registration Statement or any new registration statement be declared effective) and furnish at its own expense to the Underwriters and to dealers, amendments or supplements to the Registration Statement, the Disclosure Package or the Prospectus, or any new registration statement, necessary in order to make the statements in the Disclosure Package or the Prospectus as so amended or supplemented, in light of the circumstances then prevailing or under which they were made, not misleading or so that the Registration Statement, the Disclosure Package or the Prospectus, as amended or supplemented, will comply with law.

(d) The Company will prepare a final term sheet containing only a description of the Shares, in a form approved by the Representatives, and will file such term sheet pursuant to Rule 433(d) under the Securities Act within the time required by such rule (such term sheet, the “Final Term Sheet”). Any such Final Term Sheet is an Issuer Free Writing Prospectus for purposes of this Agreement.

(e) The Company represents that (other than the Final Term Sheet) it has not made, and agrees that, unless it obtains the prior written consent of the Representatives, it will not make, any offer relating to the Shares that would constitute an issuer free writing prospectus as defined in Rule 433 of the Securities Act (each, an “Issuer Free Writing Prospectus”) or that would otherwise constitute a “free writing prospectus” as defined in Rule 405 of the Securities Act) required to be filed by the Company with the Commission or retained by the Company under Rule 433 of the Securities Act; provided that the prior written consent of the Representatives shall be deemed to have been given in respect of the Free Writing Prospectus included in Schedule II hereto. Any such free writing prospectus consented to by the Representatives is hereinafter referred to as a “Permitted Free Writing Prospectus.” The Company agrees that (i) it has treated and will treat, as the case may be, each Permitted Free Writing Prospectus as an Issuer Free Writing Prospectus, and (ii) has complied or will comply, as the case may be, with the

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requirements of Rules 164 and 433 of the Securities Act applicable to any Permitted Free Writing Prospectus, including in respect of timely filing with the Commission, legending and record keeping. The Company consents to the use by any Underwriter of (i) a free writing prospectus that contains no “issuer information” (as defined in Rule 433(h)(2) under the Securities Act) that was not included (including through incorporation by reference) in the Prospectus or a previously filed Issuer Free Writing Prospectus, (ii) any Issuer Free Writing Prospectus listed on Schedule II hereto, or (iii) (x) information describing the preliminary terms of the Shares or their offering or (y) information that describes the final terms of the Shares or their offering and that is included in the Final Term Sheet.

(f) To advise you promptly and, if requested by you, to confirm such advice in writing, (i) of any request by the Commission for amendments to the Registration Statement or amendments or supplements to the Prospectus or the Disclosure Package or for additional information, (ii) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of the suspension of qualification of the Shares for offering or sale in any jurisdiction, or the initiation of any proceeding for such purposes, and (iii) of the happening of any event during the Prospectus Delivery Period which makes any statement of a material fact made in the Registration Statement or the Prospectus untrue or which requires the making of any additions to or changes in the Registration Statement or the Prospectus in order to make the statements therein not misleading. To prepare and file with the Commission, promptly upon your reasonable request, any amendment or supplement to the Registration Statement, the Base Prospectus, the Prospectus or the Disclosure Package which may be necessary or advisable in connection with the distribution of the Shares by you, and to use its best efforts to cause any such post-effective amendment to the Registration Statement to become promptly effective. If at any time the Commission shall issue any stop order suspending the effectiveness of the Registration Statement, the Company will make every reasonable effort to obtain the withdrawal or lifting of such order at the earliest possible time.

(g) To furnish to you, without charge, signed copies of the Registration Statement as first filed with the Commission and of each amendment to it, including all exhibits, and to furnish to you such number of conformed copies of the Registration Statement as so filed and of each amendment to it, without exhibits, as you may reasonably request.

(h) During the Prospectus Delivery Period, to furnish to each Underwriter and dealer as many copies of the Base Prospectus and the Prospectus (each as amended or supplemented) as such Underwriter or dealer may reasonably request.

(i) Prior to any public offering of the Shares, to cooperate with you and counsel for the Underwriters in connection with the registration or qualification of the Shares for offer and sale by the several Underwriters and by dealers under the state securities or Blue Sky laws of such jurisdictions as you may request, to continue such qualification in effect so long as required for distribution of the Shares and to file such consents to service of process or other documents as may be necessary in order to effect

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such registration or qualification, provided that in no event shall the Company be obligated to qualify to do business in any jurisdiction where it is not so qualified or take any action that would subject it to service of process in suits other than those arising out of the offering or sale of the Shares in any jurisdiction where it is not now so subject.

(j) To make generally available to its security holders as soon as reasonably practicable an earnings statement covering a period of at least twelve months after the effective date of the Registration Statement which shall satisfy the provisions of Section 11(a) of the Securities Act and Rule 158 under the Securities Act.

(k) If at any time during such period the Company ceases to file reports with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, during the period of five years after the date of this Agreement, (i) to mail as soon as reasonably practicable after the end of each fiscal year to the record holders of its Shares a financial report of the Company and its subsidiaries on a consolidated basis (and a similar financial report of all unconsolidated subsidiaries, if any), all such financial reports to include a consolidated balance sheet, a consolidated statement of operations, a consolidated statement of cash flows and a consolidated statement of changes in stockholders’ equity as of the end of and for such fiscal year, together with comparable information as of the end of and for the preceding year, certified by independent certified public accountants, and (ii) to mail and make generally available as soon as reasonably practicable after the end of each quarterly period (except for the last quarterly period of each fiscal year) to such holders, a consolidated balance sheet, a consolidated statement of operations and a consolidated statement of cash flows (and similar financial reports of all unconsolidated subsidiaries, if any) as of the end of and for such period, and for the period from the beginning of such year to the close of such quarterly period, together with comparable information for the corresponding periods of the preceding year.

(l) To pay all costs, expenses, fees and taxes incident to (i) the preparation, printing, filing and distribution under the Securities Act of the Base Prospectus, each preliminary prospectus and all amendments and supplements to any of them prior to or during the Prospectus Delivery Period, any Issuer Free Writing Prospectus and the Disclosure Package, (ii) the printing and delivery of the Prospectus and all amendments or supplements to it during the Prospectus Delivery Period, (iii) the registration or qualification of the Shares for offer and sale under the securities or Blue Sky laws of the several states (including in each case the fees and disbursements of counsel for the Underwriters relating to such registration or qualification and memoranda relating thereto), (iv) filings and clearance with the Financial Industry Regulatory Authority, Inc. in connection with the offering, (v) furnishing such copies of the Registration Statement, the Prospectus and all amendments and supplements thereto as may be requested for use in connection with the offering or sale of the Shares by the Underwriters or by dealers to whom Shares may be sold, (vi) the preparation, issuance, execution and delivery of the Shares and (vii) the fees and expenses of any transfer agent or registrar in connection with the Shares.

(m) To apply the net proceeds from the sale of the Shares in the manner described under the caption “Use of Proceeds” in the Prospectus.

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(n) To use its best efforts to do and perform all things required or necessary to be done and performed under this Agreement by the Company prior to the Closing Date and to satisfy all conditions precedent to the delivery of the Shares.

(o) For the period ending 90 days after the date of the Prospectus, the Company will not (i) offer, pledge, announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Common Stock, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise, without the prior written consent of the Representatives, other than (w) the Shares to be sold hereunder, (x) the issuance of shares of Common Stock upon the exercise of an option or warrant or conversion of a security outstanding on the date of this Agreement, (y) grants and issuances of shares of Common Stock, options to acquire Common Stock or other derivative securities pursuant to stock-based compensation or incentive plans of the Company, (z) the issuance of shares of Common Stock pursuant to the Company’s dividend reinvestment plans or employee stock purchase plans. Notwithstanding the foregoing, if (1) during the last 17 days of the 90-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs; or (2) prior to the expiration of the 90-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 90-day period, the restrictions imposed by this Agreement shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event.

(p) Not to take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

(q) To use its best efforts to list, subject to notice of issuance the Shares on the New York Stock Exchange (“NYSE”) and to maintain such listing.

(r) To maintain a transfer agent and, if necessary under the jurisdiction of incorporation of the Company, a registrar for the Common Stock.

6. Representations and Warranties of the Company. The Company represents and warrants to each Underwriter that:

(a) The Company meets the requirements for use of Form S-3 under the Securities Act. The Registration Statement has become effective; no stop order suspending the effectiveness of the Registration Statement is in effect, and, to the best of the Company’s knowledge, no proceedings for such purpose are pending before or threatened by the Commission. No order preventing the use of any preliminary prospectus or any Issuer Free Writing Prospectus has been issued by the Commission.

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(b)(i) At the time of filing the Registration Statement, (ii) at the time of the most recent amendment thereto for the purposes of complying with Section 10(a)(3) of the Securities Act (whether such amendment was by post-effective amendment, incorporated report filed pursuant to Section 13 or 15(d) of the Exchange Act or form of prospectus), and (iii) at the time the Company or any person acting on its behalf (within the meaning, for this clause only, of Rule 163(c)) made any offer relating to the Shares in reliance on the exemption of Rule 163, the Company was a “well-known seasoned issuer” as defined in Rule 405, including not having been an “ineligible issuer” as defined in Rule 405.

(c) The Registration Statement is an “automatic shelf registration statement” as defined in Rule 405, that initially became effective within three years of the date hereof.

(d) The Company has not received from the Commission any notice pursuant to Rule 401(g) objecting to the use of the automatic shelf registration statement form. If at any time during the Prospectus Delivery Period the Company receives from the Commission a notice pursuant to Rule 401(g)(2) or otherwise ceases to be eligible to use the automatic shelf registration statement form, the Company will (i) promptly notify the Representatives, (ii) promptly file a new registration statement or post-effective amendment on the proper form relating to the Shares, in a form satisfactory to the Representatives, (iii) use its best efforts to cause such registration statement or post-effective amendment to be declared effective as soon as practicable, and (iv) promptly notify the Representatives of such effectiveness. The Company will take all other action necessary or appropriate to permit the public offering and sale of the Shares to continue as contemplated in the registration statement that was the subject of the Rule 401(g)(2) notice or for which the Company has otherwise become ineligible. References herein to the Registration Statement shall include such new registration statement or post-effective amendment, as the case may be.

(e) The Company agrees to pay the required Commission filing fees relating to the Shares within the time required by Rule 456(b)(1) without regard to the proviso therein and otherwise in accordance with Rules 456(b) and 457(r).

(f)(i) At the respective times the Registration Statement and any post-effective amendment thereto became or becomes effective prior to the Closing Date, neither the Registration Statement nor such amendment included or will include an untrue statement of a material fact or omitted or will omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) the Registration Statement and the Prospectus comply and, as amended or supplemented, if applicable, as of the date such amendment becomes effective or such supplement is filed with the Commission, as the case may be, will comply in all material respects with the Securities Act, (iii) the Prospectus does not contain and, as amended or supplemented, if applicable, as of the date such amendment becomes effective or such supplement is filed with the Commission, as the case may be, will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that

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the representations and warranties set forth in this paragraph (f) do not apply to statements or omissions in the Registration Statement or the Prospectus based upon information relating to any Underwriter furnished to the Company in writing by such Underwriter expressly for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8 hereof and (iv) the documents incorporated by reference in the Prospectus pursuant to Item 12 of Form S-3 under the Securities Act, at the time they were or hereafter are filed with the Commission prior to the Closing Date, complied and will comply in all material respects with the requirements of the Exchange Act, and, when read together and with the other information in the Prospectus, as of the date of the Prospectus and at all times subsequent thereto up to the Closing Date, did not and will not contain an untrue statement of material fact or did not and will not omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(g) The term “Disclosure Package” shall mean (i) the Base Prospectus, including the preliminary prospectus supplement dated September 23, 2008, as amended or supplemented at the Time of Sale (as defined below), and (ii) the Issuer Free Writing Prospectuses, if any, identified on Schedule II hereto. As of the Time of Sale, the Disclosure Package did not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The preceding sentence does not apply to statements in or omissions from the Disclosure Package based upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8 hereof. As used in this paragraph and elsewhere in this Agreement “Time of Sale” shall mean 8:30 p.m. on September 24, 2008.

(h) Each Issuer Free Writing Prospectus does not include any information that conflicts with the information contained in the Registration Statement, including any document incorporated by reference therein that has not been superseded or modified. The foregoing sentence does not apply to statements in or omissions from any Issuer Free Writing Prospectus based upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8 hereof.

(i) The Company has not distributed and will not distribute, prior to the later of the Closing Date and the completion of the Underwriters’ distribution of the Shares, any offering materials in connection with the offering and sale of the Shares other than a preliminary prospectus, the Prospectus, and any Issuer Free Writing Prospectus reviewed and consented to by the Representatives and included in Schedule II hereto.

(j) The Company and each of its subsidiaries that is a “Significant Subsidiary” within the meaning of such term as defined in Rule 1-02 of Regulation S-X

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of the Commission (the “Significant Subsidiaries”) is validly existing as a corporation (or, in the case of Capital One Bank (USA), National Association, as a national banking association organized under the laws of the United States, and Capital One, National Association, as a national banking association organized under the laws of the United States) in good standing under the laws of its jurisdiction of incorporation and has in all material respects the corporate power and authority to operate its business as it is currently being conducted and to own, lease and operate its properties, and each is duly qualified and is in good standing as a foreign corporation authorized to do business in each jurisdiction in which the nature of its business or its ownership or leasing of property requires such qualification, except where the failure to be so qualified would not have a material adverse effect on the Company and its subsidiaries, taken as a whole.

(k) All of the outstanding shares of capital stock of, or other ownership interests in, each of the Company’s Significant Subsidiaries have been duly authorized and validly issued and are fully paid and non-assessable, and are owned by the Company, free and clear of any security interest, claim, lien, encumbrance or adverse interest of any nature.

(l) The Company has an authorized capitalization as set forth in the Registration Statement, the Prospectus and the Disclosure Package under the heading Capitalization; all of the outstanding shares of capital stock of the Company have been duly authorized and validly issued and are fully paid and non-assessable and are not subject to any preemptive or similar rights; except as described in the Registration Statement, the Prospectus and the Disclosure Package, there are no outstanding rights (including, without limitation, pre-emptive rights), warrants or options to acquire, or instruments convertible into or exchangeable for, any shares of capital stock or other equity interest in the Company or any of its subsidiaries, or any contract, commitment, agreement, understanding or arrangement of any kind relating to the issuance of any capital stock of the Company or any such subsidiary, any such convertible or exchangeable securities or any such rights, warrants or options; the capital stock of the Company, including the Shares, conforms in all material respects to the description thereof contained in the Registration Statement, the Prospectus and the Disclosure Package.

(m) The Shares have been duly authorized and, when issued and delivered to the Underwriters against payment therefor as provided by this Agreement, will be validly issued, fully paid and non-assessable; the issuance of the Shares is not subject to any preemptive rights or similar rights; the Shares, when issued and delivered to the Underwriters against payment therefor as provided by this Agreement, will be free of any restriction upon the voting or transfer thereof pursuant to the Company’s charter or by-laws or any agreement or other instrument to which the Company is a party.

(n) This Agreement has been duly authorized, executed and delivered by the Company and is a valid and binding agreement of the Company enforceable in accordance with its terms (except as limited by (i) bankruptcy, insolvency or similar laws affecting creditors’ rights generally and (ii) equitable principles of general applicability and as rights to indemnity and contribution hereunder may be limited by applicable law).

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(o) Neither the Company nor any of its Significant Subsidiaries is in violation of its respective charter or by-laws or in default in any material respect in the performance of any obligation, agreement or condition contained in any bond, debenture, note or other evidence of indebtedness material to the Company and its subsidiaries, taken as a whole, or in any other agreement, indenture or instrument material to the conduct of the business of the Company and its subsidiaries, taken as a whole, to which the Company or any of its Significant Subsidiaries is a party or by which it or any of its Significant Subsidiaries or their respective property is bound.

(p) The execution, delivery and performance of this Agreement, the issuance and sale of the Shares and compliance by the Company with all the provisions hereof and the consummation by the Company of the transactions contemplated hereby will not require any consent, approval, authorization or other order of any court, regulatory body, administrative agency or other governmental body (except as such may be required under the securities or Blue Sky laws of the various states) and will not conflict with or constitute a breach of any of the terms or provisions of, or a default under, the charter or by-laws of the Company or any of its Significant Subsidiaries or any material indenture, agreement, or other instrument to which it or any of its Significant Subsidiaries is a party or by which it or any of its Significant Subsidiaries or their respective property is bound, or violate or conflict with any laws, administrative regulations or rulings or court decrees applicable to the Company, any of its Significant Subsidiaries or their respective property.

(q) Except as otherwise set forth in the Disclosure Package, there are no material legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any of their respective property is the subject, and, to the best of the Company’s knowledge, no such proceedings are threatened or contemplated. No contract or document of a character required to be described in the Registration Statement or the Prospectus or to be filed as an exhibit to the Registration Statement is not so described or filed as required.

(r) The Company and each of its Significant Subsidiaries are in compliance in all material respects with all laws administered by and regulations of the Board of Governors of the Federal Reserve System, the Federal Deposit Insurance Corporation, the Office of Thrift Supervision, and any other federal or state bank regulatory authority with jurisdiction over the Company or any of its subsidiaries (the “Bank Regulatory Authorities”), other than where such failures to comply would not have a material adverse effect on the Company and its subsidiaries, taken as a whole. Neither the Company nor any of its subsidiaries is a party to any written agreement or memorandum of understanding with, or a party to any commitment letter or similar undertaking to, or is subject to any order or directive by, or is a recipient of any extraordinary supervisory letter from, or has adopted any board resolutions at the request of, any Bank Regulatory Authority which restricts materially the conduct of its business, or requires any material change in its policies or practices relating to capital, credit or management, nor have any of them been advised by any Bank Regulatory Authority that it is contemplating issuing or requesting (or is considering the appropriateness of issuing or requesting) any such order, decree, agreement, memorandum of understanding, extraordinary supervisory letter, commitment letter or similar submission, or any such board resolutions.

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(s) The Company and each of its subsidiaries has such permits, licenses, franchises and authorizations of governmental or regulatory authorities (“permits”), as are necessary to own, lease and operate its respective properties that are material to the Company and its subsidiaries, taken as a whole, or to the conduct of the business of the Company and its subsidiaries, taken as a whole; the Company and each of its subsidiaries has fulfilled and performed all of its material obligations with respect to such permits and no event has occurred which allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other material impairment of the rights of the holder of any such permit; and, except as described in the Disclosure Package and the Prospectus, such permits contain no restrictions that are materially burdensome to the Company and its subsidiaries, taken as a whole.

(t) Ernst & Young LLP are independent public accountants with respect to the Company as required by the Securities Act.

(u) The financial statements, together with related schedules and notes forming part of the Registration Statement, the Disclosure Package and the Prospectus (and any amendment or supplement thereto), present fairly in all material respects the consolidated financial position, results of operations and cash flows of the Company and its subsidiaries on the basis stated in the Registration Statement at the respective dates or for the respective periods to which they apply; such statements and related schedules and notes have been prepared in accordance with generally accepted accounting principles consistently applied throughout the periods involved, except as disclosed therein; and the other financial and statistical information and data set forth in the Registration Statement, Disclosure Package and the Prospectus (and any amendment or supplement thereto) is, in all material respects, accurately presented and prepared on a basis consistent with such financial statements and the books and records of the Company.

(v) The Company is not required, and will not be after application of the net proceeds from the sale of the Shares be required, to register under the provisions of the Investment Company Act of 1940, as an “investment company” amended (the “Investment Company Act”), and is not required to take any other action with respect to or under the Investment Company Act for the offer and sale of the Shares as contemplated hereunder.

(w) The Company maintains (i) effective internal control over financial reporting as defined under Rule 13a-15(f) the Exchange Act, and (ii) a system of internal accounting controls sufficient to provide reasonable assurance that (A) transactions are executed in accordance with management’s general or specific authorizations; (B) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability; (C) access to assets is permitted only in accordance with management’s general or specific authorization; and (D) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

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(x) Except as disclosed in the Prospectus and the Disclosure Package, or in any document incorporated by reference therein, since the end of the Company’s most recent audited fiscal year, there has been (i) no material weakness in the Company’s internal control over financial reporting (whether or not remediated) and (ii) no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

(y) Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is aware of or has taken any action, directly or indirectly, that would result in a violation by such persons of the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder (the “FCPA”), including, without limitation, making use of the mails or any means or instrumentality of interstate commerce corruptly in furtherance of an offer, payment, promise to pay or authorization of the payment of any money, or other property, gift, promise to give, or authorization of the giving of anything of value to any “foreign official” (as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for foreign political office, in contravention of the FCPA; and the Company, its subsidiaries and, to the knowledge of the Company, its affiliates have conducted their businesses in compliance in all material respects with the FCPA and have instituted and maintain policies and procedures designed to ensure, and which are reasonably expected to continue to ensure, continued compliance therewith.

(z) None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or Affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering of the Shares hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

(aa) The operations of the Company and its subsidiaries are in material compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the best knowledge of the Company, threatened, which could reasonably be expected to have a material adverse effect on the Company and its subsidiaries, taken as a whole.

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(bb) The charges, accruals and reserves on the books of the Company in respect of any income and corporation tax liability for any years not finally determined are adequate to meet any assessments or re-assessments for additional income tax for any years not finally determined, except to the extent of any inadequacy that would not have a material adverse affect on the Company and its subsidiaries, taken as a whole.

(cc) Since the date of the most recent financial statements of the Company included or incorporated by reference in the Registration Statement, the Prospectus and the Disclosure Package, (i) there has not been any change in the capital stock or any material change in the long-term debt of the Company, or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock (other than ordinary course equity issuances under the Company’s existing employee compensation plans), or any material adverse change, or any development involving a prospective material adverse change, in or affecting the business, properties, management, financial position, stockholders’ equity, results of operations or prospects of the Company and its subsidiaries, taken as a whole; (ii) neither the Company nor any of its subsidiaries has entered into any transaction or agreement (other than transactions entered into in the ordinary course of the Company’s business) that is material to the Company and its subsidiaries, taken as a whole, or incurred any liability or obligation, direct or contingent, that is material to the Company’s and its subsidiaries, taken as a whole; (iii) neither the Company nor any of its subsidiaries has sustained any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor disturbance or dispute or any action, order or decree of any court or arbitrator or governmental regulatory authority, except in each case as otherwise disclosed in the Registration Statement, the Prospectus and the Disclosure Package.

(dd) The Company has not received any notice from the NYSE regarding the delisting of the Common Stock from the NYSE.

(ee) The Company has not taken, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

7. Representations and Warranties of the Underwriters. Each Underwriter hereby represents and agrees that (other than the Final Term Sheet) it has not and will not make any offer relating to the Shares that would constitute a “free writing prospectus” as defined in Rule 405 under the Securities Act without the prior consent of the Company or as permitted in Section 5(e) above and that Schedule II hereto is a complete list of any free writing prospectus for which the Underwriters have received such consent.

8. Indemnification. (a) The Company agrees to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages, liabilities and judgments arising out of or based upon any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, the Prospectus, the Disclosure Package or any Issuer Free

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Writing Prospectus (each as amended or supplemented if the Company shall have furnished any amendments or supplements thereto) or any preliminary prospectus, or arising out of or based upon any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as such losses, claims, damages, liabilities or judgments are caused by any such untrue statement or omission or alleged untrue statement or omission based upon information relating to any Underwriters furnished in writing to the Company by or on behalf of any Underwriter through you expressly for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in this Section 8.

(b) In case any action shall be brought against any Underwriter or any person controlling such Underwriter, based upon any preliminary prospectus, the Registration Statement, the Prospectus or the Disclosure Package or any amendment or supplement thereto and with respect to which indemnity may be sought against the Company, such Underwriter shall promptly notify the Company in writing and the Company shall assume the defense thereof, including the employment of counsel reasonably satisfactory to such indemnified party and payment of all fees and expenses. Any Underwriter or any such controlling person shall have the right to employ separate counsel in any such action and participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such Underwriter or such controlling person unless (i) the employment of such counsel shall have been specifically authorized in writing by the Company, (ii) the Company shall have failed to assume the defense and employ counsel or (iii) the named parties to any such action (including any impleaded parties) include both such Underwriter or such controlling person and the Company and such Underwriter or such controlling person shall have been advised by such counsel that there may be one or more legal defenses available to it which are different from or additional to those available to the Company (in which case the Company shall not have the right to assume the defense of such action on behalf of such Underwriter or such controlling person, it being understood, however, that the Company shall not, in connection with any one such action or separate but substantially similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, be liable for the reasonable fees and expenses of more than one separate firm of attorneys (in addition to any local counsel) for all such Underwriters and controlling persons, which firm shall be designated in writing by the Representatives, and that all such reasonable fees and expenses shall be reimbursed as they are incurred). The Company shall not be liable for any settlement of any such action effected without its written consent but if settled with the written consent of the Company, the Company agrees to indemnify and hold harmless any Underwriter and any such controlling person from and against any loss or liability by reason of such settlement. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such indemnified party, unless such settlement includes (i) an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding and (ii) does not include any statement as to, or an admission of, fault, culpability or failure to act by or on behalf of any indemnified party.

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(c) Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, each of its directors and each of its officers who signs the Registration Statement and each person controlling the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, to the same extent as the foregoing indemnity from the Company to each Underwriter but only to the extent of losses, claims, damages, liabilities and judgments arising out of or based upon information relating to such Underwriter furnished in writing by or on behalf of such Underwriter expressly for use in the Registration Statement, the Base Prospectus, the Disclosure Package or the Prospectus. You confirm that the Underwriters’ names on the cover page of the preliminary prospectus supplement and the Prospectus and the Underwriters’ names in the table in the first paragraph and the statements set forth in the third and eleventh paragraphs under the heading “Underwriting” in the preliminary prospectus supplement and the Prospectus were furnished in writing to the Company by or on behalf of the Underwriters expressly for use therein. In case any action shall be brought against the Company, any of its directors, any such officer or any person controlling the Company based on the Registration Statement, the Base Prospectus, any preliminary prospectus or the Prospectus and in respect of which indemnity may be sought against any Underwriter, the Underwriter shall have the rights and duties given to the Company (except that if the Company shall have assumed the defense thereof, such Underwriter shall not be required to do so, but may employ separate counsel therein and participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of the Underwriter), and the Company, its directors, any such officers and any person controlling the Company shall have the rights and duties given to the Underwriter, by Section 8(b) hereof.

(d) If the indemnification provided for in paragraphs (a), (b) and (c) of this Section 8 is unavailable to an indemnified party in respect of any losses, claims, damages, liabilities or judgments referred to therein, then each indemnifying party, in lieu of indemnifying such indemnified party, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages, liabilities and judgments (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other hand from the offering of the Shares or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company and the Underwriters in connection with the statements or omissions which resulted in such losses, claims, damages, liabilities or judgments, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Underwriters shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company, and the total underwriting discounts and commissions received by the Underwriters, bear to the total price to the public of the Shares, in each case as set forth in the table on the cover page of the Prospectus. The relative fault of the Company and the Underwriters shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information supplied by the Company or the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

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The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 8(d) were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to in the immediately preceding paragraph. The amount paid or payable by an indemnified party as a result of the losses, claims, damages, liabilities or judgments referred to in the immediately preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 8, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Shares underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Section 8(d) are several in proportion to the respective number of Shares purchased by each of the Underwriters hereunder and not joint.

9. Conditions of Underwriters’ Obligations. The several obligations of the Underwriters to purchase the Shares under this Agreement are subject to the satisfaction of each of the following conditions:

(a) All the representations and warranties of the Company contained in this Agreement shall be true and correct on the Closing Date and any Option Closing Date with the same force and effect as if made on and as of the Closing Date or such Option Closing Date, as applicable.

(b) The Prospectus shall have been filed with the Commission in the manner and within the time period required by Rule 424(b) under the Securities Act, and at the Closing Date and any Option Closing Date, no stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been commenced or shall be pending before or, to the best knowledge of the Company, contemplated by the Commission.

(c) The Final Term Sheet and any material required to be filed by the Company pursuant to Rule 433(d) under the Securities Act, shall have been filed with the Commission within the applicable time periods prescribed for such filings under Rule 433.

(d) Subsequent to the execution and delivery of this Agreement and prior to the Closing Date and any Option Closing Date, there shall not have been any downgrading, nor shall any notice have been given of any intended or potential downgrading or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded any of the Company’s securities by any “nationally recognized statistical rating organization”, as such term is defined for purposes of Rule 436(g)(2) under the Securities Act.

17

(e)(i) Since the date of the latest balance sheet included in the Registration Statement and the Prospectus, there shall not have been any material adverse change, or any development involving a prospective material adverse change, in the condition, financial or otherwise, or in the earnings, affairs or business prospects, whether or not arising in the ordinary course of business, of the Company and its subsidiaries taken as a whole, except as set forth or contemplated in the Prospectus, (ii) since the date of the latest balance sheet included in the Registration Statement and the Prospectus there shall not have been any material adverse change, or any development involving a prospective material adverse change, in the capital stock or in the long-term debt of the Company from that set forth or contemplated in the Registration Statement and Prospectus, (iii) the Company and its subsidiaries shall have no liability or obligation, direct or contingent, which is material to the Company and its subsidiaries, taken as a whole, other than those reflected in the Registration Statement and the Prospectus and (iv) on the Closing Date and any Option Closing Date you shall have received a certificate dated the Closing Date or such Option Closing Date, as applicable, signed by the Chief Financial Officer and the Treasurer of the Company, confirming the matters set forth in paragraphs (a), (b), (c), (d) and (e) (i) – (iii) of this Section 9.

(f) You shall have received on the Closing Date and any Option Closing Date an opinion (reasonably satisfactory to you and counsel for the Underwriters), dated the Closing Date or such Option Closing Date, as applicable, of a Chief Counsel or General Counsel of the Company or such other person as the Representatives and the Company may agree. The opinion of such counsel shall be rendered to you at the request of the Company and shall so state therein.

(g) You shall have received on the Closing Date and any Option Closing Date an opinion (reasonably satisfactory to you and counsel for the Underwriters), dated the Closing Date or such Option Closing Date, as applicable, of Gibson, Dunn & Crutcher LLP, special counsel to the Company.

(h) You shall have received on the Closing Date and any Option Closing Date an opinion, dated the Closing Date or such Option Closing Date, as applicable, of Morrison & Foerster LLP, counsel for the Underwriters, covering such matters as you may request.

(i) You shall have received letters on and as of the date hereof and on and as of the Closing Date and any Option Closing Date, in form and substance satisfactory to you, from Ernst & Young LLP, independent public accountants, with respect to the financial statements and certain financial information contained in the Registration Statement, any preliminary prospectus and the Prospectus.

(j) The Shares to be delivered on the Closing Date, or Option Closing Date, as the case may be, shall have been approved for listing on the NYSE, subject to official notice of issuance.

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(k) The lock-up agreements, each substantially in the form of Exhibit A hereto, between you and certain officers and directors of the Company relating to sales and certain other dispositions of shares of capital stock of the Company or certain other securities, delivered to you on or before the date hereof, shall be in full force and effect on the Closing Date, and any Option Closing Date, as the case may be.

(l) The Company shall not have failed at or prior to the Closing Date and any Option Closing Date to perform or comply with any of the agreements herein contained and required to be performed or complied with by the Company at or prior to the Closing Date or such Option Closing Date, as applicable.

10. Effective Date of Agreement and Termination. This Agreement shall become effective upon the execution of this Agreement.

This Agreement may be terminated at any time prior to the Closing Date by the Representatives by written notice to the Company if any of the following has occurred: (i) since the respective dates as of which information is given in the Registration Statement and Prospectus and since the Time of Sale, any material adverse change or development involving a prospective material adverse change (including, without limitation, the enactment, publication, decree or other promulgation of any federal or state statute, regulation, rule or order of any court or other governmental authority) in the condition, financial or otherwise, of the Company and its subsidiaries taken as a whole or the earnings, affairs, or business prospects of the Company and its subsidiaries taken as a whole, whether or not arising in the ordinary course of business, which would, in the judgment of the Representatives, make it impracticable to market the Shares on the terms and in the manner contemplated in the Prospectus, (ii) any outbreak or escalation of hostilities or other national or international calamity or crisis (including, without limitation, an act of terrorism) or change in economic conditions or in the financial markets of the United States or elsewhere that, in the judgment of the Representatives, is material and adverse and would, in the judgment of the Representatives, make it impracticable to market the Shares on the terms and in the manner contemplated in the Prospectus, (iii) the suspension or material limitation of trading in securities generally, or in the securities of the Company listed, on the New York Stock Exchange, the American Stock Exchange or The NASDAQ Stock Market, limitation on prices on any such exchange, (iv) a material disruption in securities settlement that makes it impracticable to deliver the Shares in the manner contemplated by the Prospectus, or (v) the taking of any action by any federal, state or local government or agency in respect of its monetary or fiscal affairs which in the opinion of the Representatives has a material adverse effect on the financial markets in the United States.

If on the Closing Date any one or more of the Underwriters shall fail or refuse to purchase and pay for any of the Shares which it or they have agreed to purchase hereunder on such date and the number of Shares which such defaulting Underwriter or Underwriters, as the case may be, agreed but failed or refused to purchase is not more than one-tenth of the total number of Shares to be purchased on such date by all Underwriters, each non-defaulting Underwriter shall be obligated severally, in the proportion which the number of Shares set forth opposite its name in Schedule I bears to

19

the total number of Shares which all the non-defaulting Underwriters, as the case may be, have agreed to purchase, or in such other proportion as you may specify, to purchase the Shares which such defaulting Underwriter or Underwriters, as the case may be, agreed but failed or refused to purchase on such date; provided that in no event shall the number of Shares which any Underwriter has agreed to purchase pursuant to Section 2 hereof be increased pursuant to this Section 10 by an amount in excess of one-ninth of the number of Shares without the written consent of such Underwriter. If on the Closing Date any Underwriter or Underwriters shall fail or refuse to purchase Shares and the aggregate number of Shares with respect to which such default occurs is more than one-tenth of the aggregate number of Shares to be purchased on such date by all Underwriters and arrangements satisfactory to you and the Company for purchase of such Shares are not made within 48 hours after such default, this Agreement will terminate without liability on the part of any non-defaulting Underwriter and the Company. In any such case which does not result in termination of this Agreement, either you or the Company shall have the right to postpone the Closing Date, but in no event for longer than seven days, in order that the required changes, if any, in the Registration Statement and the Prospectus or any other documents or arrangements may be effected. Any action taken under this paragraph shall not relieve any defaulting Underwriter from liability in respect of any default of any such Underwriter under this Agreement.

11. No Agency or Fiduciary Duty. The Company acknowledges and agrees that: (i) the purchase and sale of the Shares pursuant to this Agreement, including the determination of the public offering price of the Shares and any related discounts and commissions, is an arm’s length commercial transaction between the Company, on the one hand, and the several Underwriters, on the other hand, and the Company is capable of evaluating and understanding and understands and accepts the terms, risks and conditions of the transactions contemplated by this Agreement; (ii) in connection with each transaction contemplated hereby, each Underwriter is and has been acting solely as a principal and is not the agent or fiduciary of the Company or its affiliates, stockholders, creditors or employees or any other party; (iii) no Underwriter has assumed an advisory, agency or fiduciary responsibility in favor of the Company with respect to any of the transactions contemplated hereby (irrespective of whether such Underwriter has advised or is currently advising the Company on other matters) and no Underwriter has any obligation to the Company with respect to the offering contemplated hereby except the obligations expressly set forth in this Agreement; (iv) the several Underwriters and their respective affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Company and the several Underwriters have no obligation to disclose any of such interests by virtue of any advisory, agency or fiduciary relationship; and (v) the Underwriters have not provided any legal accounting, regulatory or tax advice with respect to the offering contemplated hereby and the Company has consulted its own legal, accounting, regulatory and tax advisors to the extent it deemed appropriate.

This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Company and the several Underwriters, or any of them, with respect to the subject matter hereof. The Company hereby waives and releases, to the fullest extent permitted by law, any claims that the Company may have against the several Underwriters with respect to any breach or alleged breach of agency or fiduciary duty.

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12. Miscellaneous. Notices given pursuant to any provision of this Agreement shall be addressed as follows: (a) if to the Company, to Capital One Financial Corporation, 1680 Capital One Drive, McLean, Virginia 22102, Attention: Director of Capital Markets, and (b) if to any Underwriter, to you c/o Citigroup Global Markets Inc., 388 Greenwich Street, New York, New York 10013 (fax: (212)  ###-###-####); Attention: General Counsel and J.P. Morgan Securities Inc., 277 Park Avenue, New York, New York 10172 (fax: (212)  ###-###-####); Attention: Equity Syndicate Desk, or in any case to such other address as the person to be notified may have requested in writing.

13. Representations and Indemnities to Survive. The respective indemnities, contribution agreements, representations, warranties and other statements of the Company, its officers and directors and of the several Underwriters set forth in or made pursuant to this Agreement shall remain operative and in full force and effect, and will survive delivery of and payment for the Shares, regardless of (i) any investigation, or statement as to the results thereof, made by or on behalf of any Underwriter or by or on behalf of the Company, the officers or directors of the Company or any controlling person of the Company, (ii) acceptance of the Shares and payment for them hereunder and (iii) termination of this Agreement.

14. Reimbursement of Underwriters’ Expenses. If this Agreement shall be terminated by the Underwriters for any reason under Section 10 this Agreement, or because of any failure or refusal on the part of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, the Company agrees to reimburse the several Underwriters for all out-of-pocket expenses (including the fees and disbursements of counsel) reasonably incurred by them.

15. Successors. Except as otherwise provided, this Agreement has been and is made solely for the benefit of and shall be binding upon the Company, the Underwriters, any controlling persons referred to herein and their respective successors and assigns, all as and to the extent provided in this Agreement, and no other person shall acquire or have any right under or by virtue of this Agreement. The term “successors and assigns” shall not include a purchaser of any of the Shares from any of the several Underwriters merely because of such purchase.

16. Applicable Law. This Agreement shall be governed and construed in accordance with the laws of the State of New York without reference to choice of law principles thereof.

17. Counterparts. This Agreement may be signed in various counterparts which together shall constitute one and the same instrument.

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Please confirm that the foregoing correctly sets forth the agreement between the Company and the several Underwriters.

Accepted:

J.P. MORGAN SECURITIES INC.

CITIGROUP GLOBAL MARKETS INC.

Acting on behalf of

itself and the several

Underwriters named in

Schedule I hereto

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SCHEDULE I

SI-1

SCHEDULE II

Free Writing Prospectus dated September 24, 2008

Free Writing Prospectus dated September 24, 2008

SII-1

EXHIBIT A

Lock-Up Agreement

September 24, 2008

J.P. Morgan Securities Inc.

277 Park Avenue

New York, New York 10172

Citigroup Global Markets Inc.

388 Greenwich Street

New York, New York 10013

As Representatives of the several Underwriters

listed in Schedule I to the

Underwriting Agreement referred to below

Ladies and Gentlemen:

The undersigned understands that you, as Representatives of the several Underwriters, propose to enter into an Underwriting Agreement (the “Underwriting Agreement”) with Capital One Financial Corporation, a Delaware corporation (the “Company”), providing for the public offering (the “Public Offering”) by the several Underwriters named in Schedule I to the Underwriting Agreement (the “Underwriters”), of common stock of the Company (the “Shares”). Capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Underwriting Agreement.

In consideration of the Underwriters’ agreement to purchase and make the Public Offering of the Shares, and for other good and valuable consideration receipt of which is hereby acknowledged, the undersigned hereby agrees that, without the prior written consent of J.P. Morgan Securities Inc. and Citigroup Global Markets Inc., on behalf of the Underwriters, the undersigned will not, during the period ending 90 days after the date of the prospectus relating to the Public Offering (the “Prospectus”), (1) offer, pledge, announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any shares of common stock, par value $0.01 per share, of the Company (the “Common Stock”) or any securities convertible into or exercisable or exchangeable for Common Stock (including without limitation, Common Stock which may be deemed to be beneficially owned by the undersigned in accordance with the rules and regulations of the Securities and Exchange Commission and securities which may be issued upon exercise of a stock option or warrant) or (2) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise. In addition, the undersigned agrees that, without the prior written consent of J.P. Morgan Securities Inc. and Citigroup

A-1

Global Markets Inc., on behalf of the Underwriters, it will not, during the period ending 90 days after the date of the Prospectus, make any demand for or exercise any right with respect to, the registration of any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock.

The foregoing sentence shall not apply to (a) bona fide gifts, (b) dispositions to any trust for the direct or indirect benefit of the undersigned and/or a member of the immediate family of the undersigned, (c) the transfer or intestate succession to the legal representative or a member of the immediate family of the undersigned, (d) the sale pursuant to any existing contract, instruction or plan that satisfies all of the requirements of Rule 10b5-1(c)(1)(i)(B) (a “Plan”), or (e) the establishment of any Plan provided that no sales of Common Stock or securities convertible into, or exchangeable or exercisable for, Common Stock, shall be made pursuant to a Plan prior to the expiration of the Lock-up Period if such Plan was established after the date hereof; provided that, in the case of any gift, transfer, disposition or distribution otherwise permitted by clause (a), (b), or (c), each donee, transferee or distributee, as the case may be, agrees in writing with the Underwriters to be bound by the terms of this Lock-Up Agreement. For purposes of this paragraph, “immediate family” shall mean the undersigned and any relationship by blood, marriage or adoption, not more remote than first cousin.

Notwithstanding the foregoing, if (1) during the last 17 days of the 90-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs; or (2) prior to the expiration of the 90-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 90-day period, the restrictions imposed by this Letter Agreement shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event.

In furtherance of the foregoing, the Company, and any duly appointed transfer agent for the registration or transfer of the securities described herein, are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this Letter Agreement.

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Letter Agreement. All authority herein conferred or agreed to be conferred and any obligations of the undersigned shall be binding upon the successors, assigns, heirs or personal Representatives of the undersigned.

The undersigned understands that, if the Underwriting Agreement does not become effective, or if the Underwriting Agreement (other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the Shares to be sold thereunder, the undersigned shall be released form all obligations under this Letter Agreement. The undersigned understands that the Underwriters are entering into the Underwriting Agreement and proceeding with the Public Offering in reliance upon this Letter Agreement.

A-2

This Letter Agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to the conflict of laws principles thereof.

A-3

EXHIBIT A-1

List of Directors and Officers signing Lock-ups

Richard D. Fairbank

Edward R. Campbell

W. Ronald Dietz

Patrick W. Gross

Ann Fritz Hackett

Lewis Hay, III

Pierre E. Leroy

Mayo A. Shattuck, III

Bradford H. Warner

Stanley I. Westreich

Gary L. Perlin

Robert M. Alexander

Jory A. Berson

John G. Finneran, Jr.

Lynn A. Pike

Peter A. Schnall

Ryan M. Schneider

Matthew W. Schuyler

A-1